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05-17-2015, 02:46 PM | #1 |
Join Date: Jan 2015
Location: Maine
Posts: 170
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Lifan not running right?
Hello, I have a 2006 LF200 GY-5 Lifan. I got it almost done. I went for a small ride around the block. It stalled and when I roll on the throttle it spits and spudders.
New mikuni carb. I moved the clip on the needle to the middle slot. Before the ride. Should I move it 1 slot up? New petcock in tank. New fuel line. New filter in the line. New fuel. Not sure what it is? I will post a video when it is done uploading. Any help would be very appreciated. Thanks, Dan |
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05-17-2015, 02:57 PM | #2 |
Join Date: Jan 2015
Location: Maine
Posts: 170
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05-17-2015, 03:08 PM | #3 |
Join Date: Dec 2014
Location: Deerfield Beach FL
Posts: 1,410
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Definitely carb issues. How does the exhaust smell and look. Smell rich, any black smoke? Personally I would make sure the carb is at original factory settings and then go from there. Also just for the crap of it make sure your spark plug is good and clean and if you haven't already it should be an NGK Iridium plug. Make sure no air leaks at the carb manifold connection and the engine manifold connection.
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05-17-2015, 03:11 PM | #4 |
Join Date: Oct 2014
Location: San Diego, CA
Posts: 138
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The first obvious one is make sure the choke isn't on, I've had this happen more times than I have dignity to say To determine if the bike is running lean, I usually take off my airbox and block half the intake with some duct tape. If the issue lessens then that means the bike is running too lean, and if it gets worse the bike is too rich. Once you determine that you can adjust the needle accordingly. If the bike still doesn't run correctly, the carb could have some junk in it (I've received new carbs with debris in them before). The last possibility I see is the new carb came with jets that are too rich or too lean. If possible, ride around for a bit at 70% throttle and remove the plug to see what color it is. This can indicate the condition of the fuel to air ratio in the combustion chamber. Last edited by The Thinker; 05-17-2015 at 09:23 PM. |
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05-17-2015, 08:37 PM | #5 |
Join Date: Jan 2015
Location: Maine
Posts: 170
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Well I'm gonna tell you a story.... And just don't laugh..
All this time running the bike I had the choke on. I thought the lever supposed to be up. Well guess not. I even took the carb apart and used my needle cleaner to get in the small holes on both jets. Looked all clean to me. Took it for the really first ride and went good. Got up to 60 mph (the speedo read anyways). I'm going to mount my GPS E trex 20 to really find out what I'm going. I have to find out why my front rim (I think) is bounces a little. I'll have a guy a work take it for a test ride and he will tell me. He's a bike guy. I'll post all the pics I took while getting it on the road again later. Thank you everyone for all the help so far. |
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05-17-2015, 09:22 PM | #6 |
Join Date: Oct 2014
Location: San Diego, CA
Posts: 138
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Welcome to the "left choke on" club
As far as the front rim goes, my guess is its not true and has some hop. I just recently purchased a Tusk Truing Stand and Spoke Wrench by the recommendation of multiple members of this forum and had both my wheels trued up in no time. I had never trued a wheel before so it took around an hour to get myself up to speed with how everything works, but after that it was a breeze. I figured I'd rather take some extra time to teach myself to true wheels for around $85 instead of taking one wheel to a shop to do for $150. |
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05-23-2015, 06:24 AM | #7 |
Join Date: May 2015
Location: Cambridge, England
Posts: 140
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I am also a member of that club and also the "didn't check the kill switch" one.
Jeff
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- - - - - - - - - - - - - - - - - - - - - - - Riding bikes for over 40 years Honda C50 / SS50 / CB125 / CB250 Velocettes (various) Piaggio's / Honda's / Yamaha's Raptor . . . . the List Goes On . . . . |
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05-23-2015, 08:02 AM | #8 |
Join Date: Jan 2015
Location: Maine
Posts: 170
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Haven't done that "YET"... But I bet I will someday.
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05-23-2015, 11:48 AM | #9 | |
Join Date: Mar 2009
Location: Sardis, BC, Canada
Posts: 25,977
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Quote:
All I had to do was push the button in to reset it.
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Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer |
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05-23-2015, 03:38 PM | #10 |
Join Date: Jan 2015
Location: Maine
Posts: 170
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WOW!!! That would suck!! lol
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05-17-2015, 09:37 PM | #11 |
Join Date: Jan 2015
Location: Maine
Posts: 170
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Glad to be part of that club.
Maybe some day I'll do the same as you did on truing the wheels. |
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05-17-2015, 10:19 PM | #12 |
Join Date: Mar 2008
Posts: 2,436
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I bet wheel bearing are shoot.
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05-17-2015, 10:30 PM | #13 |
Join Date: Mar 2009
Location: Sardis, BC, Canada
Posts: 25,977
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Could be. New Japanese sealed bearings can be had for cheap at a local bearing shop. Just bring the original bearings in as samples.
__________________
Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer |
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05-18-2015, 06:14 AM | #14 |
Join Date: Jan 2015
Location: Maine
Posts: 170
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Brand new wheel and bearings. Hope the bearings are good. Might of got a defect though.
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05-17-2015, 10:29 PM | #15 |
Join Date: Mar 2009
Location: Sardis, BC, Canada
Posts: 25,977
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Guttafixit, when you opened the choke, did the idle slow down at all?
__________________
Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer |
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